Reviewed crossword explanation · 4 letters
Do perfectly, informally crossword clue
Editorially reviewed August 18, 2026
Answer
NAIL
Why NAIL fits
To “nail” a task or performance is to execute it exactly right. The clue flags the informal usage.
Clue signal
“Informally” licenses a conversational verb rather than a formal synonym.
NAIL meaning
Informally, to perform or complete something successfully.
Related reviewed clues
This independently written explanation is for learning and clue analysis. It is not an official answer key from a crossword publisher.